Pith Number

pith:WTBGMNOO

pith:2019:WTBGMNOO3YR7SICQR5ONVKCPSJ

not attested not anchored not stored refs pending

Acoustic cloaking: geometric transform, homogenization and a genetic algorithm

C\'edric Payan, Lucas Pomot, Marcel Remillieux, S\'ebastien Guenneau

arxiv:1904.06315 v1 · 2019-04-12 · physics.comp-ph · cond-mat.mtrl-sci · physics.app-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTBGMNOO3YR7SICQR5ONVKCPSJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:48:43.610023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4c26635cede23f920508f5cdaa84f9273484ba11cfefac927c24bd1de7607c4

Aliases

arxiv: 1904.06315 · arxiv_version: 1904.06315v1 · doi: 10.48550/arxiv.1904.06315 · pith_short_12: WTBGMNOO3YR7 · pith_short_16: WTBGMNOO3YR7SICQ · pith_short_8: WTBGMNOO

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WTBGMNOO3YR7SICQR5ONVKCPSJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b4c26635cede23f920508f5cdaa84f9273484ba11cfefac927c24bd1de7607c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9968b63125c268ab52e2c5065a2d51b11788b60be4a38ea3eba89cbbb85c8f6",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2019-04-12T16:46:05Z",
    "title_canon_sha256": "d0d1d2e2ea616a8401ed39c9f116f071e03edcf09eaa348d33d0a33358862218"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06315",
    "kind": "arxiv",
    "version": 1
  }
}